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2002 F55 STS, 2014 Explorer XLT, F-150s
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As a long-time builder of GM big-block and Olds 455 marine engines, I can testify that there are NO disadvantages from using studs vs. bolts. The fine upper threads on studs allow extremely precise torque control and the stud geometry itself allows far more controlled clamping pressures on the head/gasket assembly. I daresay ARP Cadillac head bolts are not the same alloy as OEM, and their studs may be different yet. As long as the stud tensile strength is high enough to allow the required stretch and torque, minor differences in alloy are insignificant. It's the machining, waist diameter, and thread size/pitch which makes the differences. I would much rather land a stud in an aluminum block and leave it alone than try to remove a bolt once or twice. Aluminum and steel gall easily, so anything you can do to lessen that possibility is a plus.
 
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